package ssm.dao.impl;

import ssm.dao.Search;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class FlyweightSearch implements Search {
    /**
     * 享元模式
     *
     * @param conn
     * @param rs
     * @param rowsNumber
     * @throws SQLException
     */
    @Override
    public void check(Connection conn, ResultSet rs, int rowsNumber) throws SQLException {
        int count = 0;
        String temps2 = "";
        String temps3 = "";
        Boolean flag = true;
        for (int i = 1; i <= rowsNumber; i++) { //1st for
            rs.absolute(i);
            String rel_type = rs.getString("RelationType");
            if (rel_type.equalsIgnoreCase("ASSOCIATION")) { //1st if

                String s1 = rs.getString("SourceClass");
                String d1 = rs.getString("DestinationClass");

                for (int j = 1; j <= rowsNumber; j++) { //2nd for
                    rs.absolute(j);
                    String rel_type2 = rs.getString("RelationType");
                    if (rel_type2.equalsIgnoreCase("inheritance")) { //2nd if
                        String s2 = rs.getString("SourceClass");
                        String d2 = rs.getString("DestinationClass");

                        if ((d2.equalsIgnoreCase(d1)) && !(s2.equalsIgnoreCase(s1))) {//3rd if
                            for (int k = 1; k <= rowsNumber; k++) { //3rd for
                                rs.absolute(k);
                                String rel_type3 = rs.getString("RelationType");
                                if (rel_type3.equalsIgnoreCase("inheritance")) { //4th  if
                                    String s3 = rs.getString("SourceClass");
                                    String d3 = rs.getString("DestinationClass");
                                    if ((d3.equalsIgnoreCase(d2)) && !(s2.equalsIgnoreCase(s3))) { //5th if
                                        if (s2.equalsIgnoreCase(temps2) || s2.equalsIgnoreCase(temps3) || s3.equalsIgnoreCase(temps2) || s3.equalsIgnoreCase(temps3)) {
                                            flag = false;
                                        } // s2,s3 already inserted
                                        if (flag) {
                                            String sql2 = "INSERT INTO designs.flyweight_instances(FlyweightFactory,Flyweight,UnsharedConcreteFlywight,ConcreteFlywight) VALUES (?,?,?,?)";
                                            PreparedStatement stmt2 = conn.prepareStatement(sql2);

                                            stmt2.setString(1, s1);
                                            stmt2.setString(2, d1);
                                            stmt2.setString(3, s2);
                                            stmt2.setString(4, s3);

                                            int rows2 = stmt2.executeUpdate();
                                            count += rows2;

                                            temps2 = s2;
                                            temps3 = s3;
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
        System.out.println("found " + count + " Flyweight");
    }
}
